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This pigment based ink cartridge has a high performance and functionality. It is a cartridge rated for about 480 when new and, after being refill that number can be reduced to about 400 as long as it is filled with the the proper ink, in this case pigment ink.

Follow the next procedure to get a cartridge refill that works perfectly, in case of having problems, just leave a comment in this post.

Instructions to refill the hp 94 black cartridge

Before starting it is recommended to clean the cartridges connectors; it is necessary but not mandatory since these cartridges are of good yield, however, if cartridges have not been used for a long time, there could be dried ink in the cartridge heads which is not good. It is adviced to read how to clean the cartridge heads

Printers that show these errors, often have hp 564, 178, 862, 364 or 920 ink cartridges. If that is your case, you are in the right post. When these errors appear, what they want to indicate is that there are problems with the ink system.

It is not precisely about the external ink system but about the ink system that is the printing process of an HP printer of this type.

The ink system consists of the ink cartridges and the head of the printer. The head of this printer is not attached to the ink cartridges, it is an aside tool that processes ink as a conventional cartridge does.

First potential solution:

When these cases occur there is the possibility of that the ink cartridge is exhausted or the ink cartridges are exhausted.